Hormones

Question 1

Role of Insulin

Answer 1

Regulate blood sugar levels

Question 2

Source of Insulin

Answer 2

Pancreas

Question 3

Effect of Insulin

Answer 3

stimulates the liver and muscles to turn glucose into glycogen

Question 4

Role of Adrenaline

Answer 4

Readies the body for flight or flight response

Question 5

Source of Adrenaline

Answer 5

Adrenal Gland (above the kidneys)

Question 6

Effect of adrenaline

Answer 6

Increase of heart rate and breathing rate, increases sugar level in blood and redirects blood flow to muscles and heart (away from digestive system)

Question 7

Role of Testosterone

Answer 7

Main male sex hormone

Question 8

source of Testosterone

Answer 8

Testes

Question 9

Effect of Testosterone

Answer 9

Promotes Male secondary sexual characteristics

Question 10

Role of Progesterone

Answer 10

Control of menstrual cycle and Support Pregnancy

Question 11

source of progesterone

Answer 11

Ovaries

Question 12

Effect of Progesterone

Answer 12

Maintains lining of uterus

Question 13

Role of Oestrogen

Answer 13

Main Female sexual hormone

Question 14

Source of Oestrogen

Answer 14

Ovaries

Question 15

Effect of Oestrogen

Answer 15

Controls menstrual cycle (inhibits FSH production and causes uterus lining to thicken) and promotes Female secondary sexual characteristics

Question 16

Do roots have a negative or positive geotropic response, explain why?

Answer 16

Positive, because they grown down (with gravity), to ensure the plant is anchored in the soil

Question 17

Do shoots have a negative or positive geotropic response, explain why?

Answer 17

Negative, they grow upwards (away from gravity), to ensure the leaves are exposed to light

Question 18

Do shoots have have a negative or positive phototropic response, explain why?

Answer 18

Positive, they grow towards the light, to maximise the exposure of leaves to Iight for photosynthesis

Question 19

What is a hormone?

Answer 19

Chemical messenger, controls a response in a particular tissue or organ

Question 20

What is the name of a structure which produces and releases a hormone?

Answer 20

(endocrine) gland

Question 21

How are hormones transported to their target hormones?

Answer 21

in the blood

Question 22

What hormone is released in the growing tips of plants, and brings about tropic responses?

Answer 22

auxin

Question 23

Where does auxin accumulate in a shoot?

Answer 23

shaded side of the shoot

Question 24

What effect does auxin have on the cells in a shoot?

Answer 24

causes more rapid cell elongation on shaded side, so shoot bends towards the light